The Swedish series was published by Hemmets Journal and Epix/Pyramid.
Books 1-4 were reprinted by Hemmets Journal around 1990. See this
site for other details. The servant's name, Brah at Hamed, translates
to "good to have along"; while Caliph Harun al Sindar references
a phrase meaning "how on earth?". Thanks to Janne Helander for
help on the Swedish editions.